import type { Address } from "viem";
export type KnownSwapAddresses = {
    swapper?: Address;
    swapVerifier?: Address;
    eulerSwapV1Periphery?: Address;
    eulerSwapV2Periphery?: Address;
    eulerSwapPeriphery?: Address;
};
export declare function getAllowedSwapperAddresses(knownAddresses: KnownSwapAddresses | null | undefined): string[];
export declare function assertSwapperAllowed(swapperAddress: string, knownAddresses: KnownSwapAddresses | null | undefined): void;
export declare function assertSwapVerifierAllowed(swapVerifierAddress: string, knownSwapVerifier: string | undefined): void;
export declare function assertSwapQuoteContractsAllowed(quoteContracts: {
    swapperAddress: string;
    verifierAddress: string;
}, knownAddresses: KnownSwapAddresses | null | undefined): void;
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